Razor blade stropper



LQZQAGB 193% F. E, WOLCOTT RAZOR BLADE STROPPER Filed April 17, 1928 i HN l atented Got. 10, 1933 ice 1,929,453 RAZOR BLADE s'raorrea Frank" E.Wolcott, West Hartford, Conn; as-

Signor to The Beardsley & Wolcott Mfg. 00., a corporation ofConnecticut. 1

' Application April 17, 1928. Serial No. 270,662

12 Claims.

My invention relates to razor blade stroppersh It has for its object toprovide an improved stropper of the general type described and claimedin my Patent No. 1,550,861, patented August 25,

1925, wherein it is made possible for the user to adjust the rolls in animproved manner, over a wider range and with greater facility in orderto vary the pressure on the blade or to take up wear. A further objectof my invention is to 19 provide an improved pin and cover constructionfor such a stropper whereby all necessity for providing shims for theblade positioning members or for changing of these shims by the user orbetween adjustments, is eliminated, and whereby a wider and generallymore satisfactory and expeditious adjustment is obtainable by merelyvarying the pressure exerted by the hand holding the stropper during thesharpening operation.

These and other objects and advantages of my improved construction will,however, hereinafter more fully appear.

In the accompanying drawing I have shown, for purposes of illustration,one embodiment which my invention may assume in practice.

In this drawing,-

Figure .1 is an end elevation of a stropper equipped with myimprovement, the same being shown open with a blade'in position therein;

Fig. 2 is a transverse sectional view showing the stropper closed, themaximum depressed position of the parts also being shown in dottedlines, and

Fig. 3 is a longitudinal sectional view on line 33 of Fig. 2.

In this illustrative embodiment I have shown a stropper of the generalconstruction of my patent mentioned, and including a frame 1 havingpivoted covers 2 thereon and spaced rolls 3 carried by the frame andcooperating movable rolls 4 carried by the covers, these rolls beingopera tively connected by means of spur earing, generally indicated at 5and carried by the frame 1 and driven from a handle 5, and adapted whenthe covers are closed to sharpen a blade 7 suitably positioned on thespaced blade positioning members 8 of improvedconstruction,hereinafterdescribed.

Referring more particularly to these members 8, it will be noted that,as distinguished from the use of rigid stationary members 8 underlyingthe adjacent edges of the covers 2 and cooperating removable shims uponthe base thereof, I have provided members 8 or" a depressible type. In apreferred construction, these members 8 are normally held in a projectedposition slightly elevating the covers2, by springs, herein in'the formof coiled springs 9 and seated in bores 10 in tubular receiving members11 carried on the bottom of the frame 1. Herein, these members 11 areconnected to the frame 1 by upwardly extending (:0 screws 12 received inapertures 13 in the bottom of the frame threaded into larger bores 14 inthe lower ends of the members 11. Moreover,

it will be noted that each of the members 8 is provided with aprojection, herein in the form of 5 a flange 15, on its lower endadapted to move in the bore 10 when the body of the members 8 moves in asmaller upper bore 16, the flanges-15 also acting to limit thelongitudinal movement or" the member 8. I

In the use of my improved construction, it will be noted that when ablade is placed in the, position shown in Fig. 1 the blade is supportedonly atits edges anddirectly on the upper surfaces of the rolls 3. Whenthe covers 2 are moved down into their initial closed position shown infull lines in Fig. 2, the rolls 4 are-brought into engagement with therolls 3 so that sharpening may be eiiected upon rotation of the handle6. If further pressure is desired, depression of the covers 2 willobviously result in a depression of the members 8, the coiled springs 9then yielding and enabling the covers 2 to be further depressed toincrease the pressure. Obviously, the pressure will also be limited bycontact of the adjacent edges of the. covers 2 with one, another.Further, when the fingers applying the pressure are released, the covers2 will bev moved back by. the springs 9 to their initial position shownin Fig. 2. In case the rolls are worn, it will be evident that the sameoperation will result in brings ing the rolls 3 and 4 closer together insuch manner to compensate for this wear.

As a result of my improvement, it is made pose, sible .toobtain anydesiredpressure. It is also possible to permit the user tovary thepressure as he desires. Thus, a user can at will obtain the pressureeffects obtainable by a barber. More-- over, he can do thisconveniently, by simply vary ing his grip on the stropper. All necessityfor 100 providing the different shims described in my patent m ntionedis eliminated, and further, it is made possible to eliminate anynecessity for the removal of these shims by the user, the stropperinstead being furnished from the factory 195 in such form that by simplyvarying the pressure which he applies to the covers 2 the user can adaptthe stropper to any desired pressure or compensate for wear in suchmanner as may be necessary. It will also be evident that although 1 1 0a wide range of adjustment is permitted before further depression isprevented, through the oooperation of the clepressible members 8 and theengaging or abutting edges of the covers, means are provided whichprevent the user from applying too great pressure. The springs 9, bytheir opposition to the pressure exertedby the operator, also tend toprevent too great unintentional pressure which may be unnecessary and ofcourse return the covers to initial position as soon as pressure isremoved. Attention is also directed to the fact that the newconstruction is adapted to be embodied in stroppers of my priorconstruction with a minimum of expense. It will also be noted that theparticular construction illustrated is adapted to long use in service.

, These and other advantages of my invention will,

however, be obvious to those skilled'in the art.

While I have in this application specifically described one embodimentwhich my invention may asume in practice, it will be understood that thesame is shown for purposes of illustration only, and that the inventionis not limited thereto but may be modified and embodied in various otherI; forms without departing from its spirit or the scope of the appendedclaims.

What I claim asnew and desire to secure by Letters Patent is:-

1. In a stropper, cooperating rolls including movable rolls, the lattercarried on pivoted cover members, depressible spring supported slidableblade positioning pins between said first mentioned rolls normallyholding said covers slightly elevated and depressible upon pressure ofsaid covers to increase the pressure of the movable rolls thereonagainst their cooperating rolls, and

.means on said cover members limiting the possible depression thereof.

-2. In a stropper, cooperating rolls including movable rolls, the lattercarried on pivoted cover members, depressible spring supported slidableblade positioning pins between said first'mentioned rolls normallyholding said covers slightly elevated and depressible upon pressure ofsaid -covers to increase the pressure of the movable rolls thereonagainst their cooperating rolls, and means on said cover memberslimitingthe possible depression thereof, said means including adjacent edgesadapted to engage upon depression i of said covers and depressiblemembers.

3. In a stropper, a frame carrying spaced rolls, separately pivotedcover members on said frame each carrying a cooperating roll operativelyconnected to said first mentioned rolls, blade positioning means, and aplurality of upstanding spring-pressed slidable plungers between saidspaced rolls and depressible by said cover members to permit an increasein pressure of said cooperating rolls.

4. In a stropper, a frame carrying spaced rolls, separatelypivoted'cover members on said frame each carrying a cooperating rolloperatively connected to said first mentioned rolls, and a plurality ofupstanding slidable means carried by said frame each having a portionextending through a blade being sharpened and a spring portion providinga resilient support for a cover member.

5. In combination, a frame having laterally taneously stropping bothsides of both edges of said blade, and spring-pressed slidable meanspassing through said blade for holding said i stropping means apart, thepressure on the edges of said blade being controlled by pressing saidstropping means together.

7. In a stropper, a fixed stropper roll, a cooperating movable stropperroll, means for hold- .ing :a blade in stropping position, and slidablespring-pressed means passing through said blade for normally holdingsaid rolls apart, the pressure between said'rolls' being adapted to beincreased when saidrolls are pressed together.

8. In a stropper, a pair of relatively movable stropperrolls, slidablespring-pressed means for holding a blade in stropping position betweensaid rolls, said means passing through said blade and beingyieldable ina direction perpendicular to the blade and serving to control and limitthe pressure between said rolls.

9. In a stropper, a frame carrying a roll-holding member, 'a cooperatingroll-holding cover member pivoted to said frame, and slidablespring-pressed blade-positioning means carried by said frame and passingthrough the blade to permit the pressure between said rolls to bemanually varied, and means to limit said pressure.

10. In a stropper, a frame carrying a pair of spaced stropper rolls, apair of roll-holding cover members pivoted to said frame, yieldablespringpressed slidable blade-positioning means on said framebetween'said spaced rolls, passing through the blade, and engageablewith both of said cover members, whereby manual pressure exerted uponsaid cover members will vary the stropping pressure between said rolls,the pressure between said'rolls being limited by the engagement ofadjacent inner edges of said cover members.

11. Ina stropper, a frame carrying-a pair of spaced stropper rolls, apair of roll-holding cover members'pivoted on said frame, a pair ofupwardly spring-pressed downwardly slidable pins carried on said frameand engageable by the adjacent inner edges of said cover members, thepressure 'between'said stropping rolls' being controlled by'the pressureexerted upon said cover members and'lim'ited in maximum amount by theengagement of the adjacent inner edges thereof.

12.'In a blade stropper, a frame carrying a roll-holding member, and acooperating springpressed cover member pivoted to said frame, said covermember being normally held at a relative- 1y elevated position byslidable spring means passllO ing through the blade and adapted to bemanu-

